The event, which will include family activities like a Halloween costume contest for children through age 10, a bounce house and silent action, is being held Saturday at the Fort Worth Police & Firefighter’s Memorial at 2300 West 7th Street.

Registration for the races, which include a 10-mile, four-mile and one-mile fun run through Trinity Park, begins at 6:30 a.m. Saturday with the first race, the 10-mile run, starting at 7:30 a.m. and the other races following soon after.

Money raised by the event goes to the H.A.N.K. Foundation, a nonprofit organization that benefits law enforcement officers in Tarrant County.

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This year, the foundation was able to provide the widow of Craig Story, an Arlington police motorcycle officer killed in a January crash, with a check of $5,000 and provide scholarships totaling $2,650 to graduating children of police officers, according to Teresa Nava-Salazar, Nava’s widow.

Nava died Dec. 1, 2005, two days after being shot by a man while attempting to serve a parole violation warrant.